165784324345652 has 12 divisors (see below), whose sum is σ = 307188600993540. Its totient is φ = 78016152633216.

The previous prime is 165784324345649. The next prime is 165784324345687. The reversal of 165784324345652 is 256543423487561.

It can be written as a sum of positive squares in 2 ways, for example, as 95307694904356 + 70476629441296 = 9762566^2 + 8395036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1219002384827 + ... + 1219002384962.

It is an arithmetic number, because the mean of its divisors is an integer number (25599050082795).

Almost surely, 2^{165784324345652} is an apocalyptic number.

It is an amenable number.

165784324345652 is a deficient number, since it is larger than the sum of its proper divisors (141404276647888).

165784324345652 is a wasteful number, since it uses less digits than its factorization.

165784324345652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438004769810 (or 2438004769808 counting only the distinct ones).

The product of its digits is 580608000, while the sum is 65.

The spelling of 165784324345652 in words is "one hundred sixty-five trillion, seven hundred eighty-four billion, three hundred twenty-four million, three hundred forty-five thousand, six hundred fifty-two".